Question

quadratic formula -(b±√b^2-4ac)/2a x^2+7x -60=0

please answer ineed now​

Answer 1

Answer:

Your answer is in the attachment

Answer 2

$\bold{Given:-}\begin{cases} \sf{a = 1} \\ \sf{b = 7} \\ \sf{c = - 60} \end{cases}$

${\underline{ \bold \star\: {Solution:-}}}$

$D= {b}^{2} - 4ac \\ \\ \: \: \: \: \: = {7}^{2} - 4(1)( - 60). \\ \\ \: \: \: \: \: = 49 - ( - 240). \\ \\ \: \: \: \: \: = 49 + 240. \\ \\ \: \: \: \: \: = 289.$

$Using \: Quadratic \: Formula:-$

$x = \frac{ - b± \sqrt{ {b}^{2} - 4ac } }{2a} . \\ \\ \: \: \: = \frac{ - 7± \sqrt{289} }{2} . \\ \\ \: \: \: = \frac{ - 7±17}{2}$

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We Can Say that [ X ]

$= \frac{ - 7 + 17}{2} . \\ \\ = \frac{ \cancel{10}}{ \cancel2} . \\ \\ = 5.$

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$= \frac{ - 7 - 17}{2} . \\ \\ = \frac{ \cancel{ - 24}}{ \cancel2} . \\ \\ = - 12.$

Either

$\purple {\large {\boxed{x = \: 5 \: \: \: \: \: or \: \: \: \: - 12.}}}$